Maryland's Defense Patent Database

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Electrochemical cells for energy harvesting

Patent image
NRL

A device having a positive electrode, a negative electrode, and an ion-conducting electrolyte in contact with both electrodes. Each electrode has a metal, a metal oxide, a hydrous metal oxide, alloy thereof, or mixture thereof, however, the electrodes are different such materials. The positive electrode is capable of storing and donating ions and electrons and reducing oxygen. The negative electrode is capable of storing and donating ions and electrons and oxidizing hydrogen. The electrolyte permits transport of oxygen and hydrogen. The device can charge using ambient hydrogen and oxygen. It can be discharged as an electrochemical capacitor or be operated in a fuel cell mode.

Inventors: 
Lyons, Karen Swider; Wartena, Ryan C.
Patent Number: 
Technical domain: 
Electronics and Energy
FIle Date: 
2009-06-08
Grant Date: 
2011-12-20
Grant time: 
925 days
Grant time percentile rank: 
16
Claim count percentile rank: 
6
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY